In the newest Guardians of the Galaxy origins short, Gamora and her foster siblings, Nebula and Korath, get into a potentially deadly fight for the second-in-command position alongside Ronan the Accuser, which ultimately leads Gamora to discover her own secret history.

We know from the Guardians of the Galaxy film that Gamora was raised by Thanos, who exterminated the rest of her race, and that she ultimately decided to betray him. Of all the Guardians, her backstory is probably the most interesting, and it will be fascinating to see her come to the decision to defect in flashbacks. Plus, since Nebula is a regular character, we can probably look forward to lots of the girl power seen in this clip: "Bet you wish you had my weapon now, huh?" "I am a weapon!"

The short features regular cast members Vanessa Marshall (Star Wars Rebels) as Gamora and Cree Summer (X-Men: Legends) as Nebula. The series also stars Boy Meets World's Will Friedle as Star Lord, Stargate: Atlantis's Trevor Devall as Rocket Raccoon, The Flash's David Sobolov as Drax, and Avengers Assemble's Kevin Michael Richardson as Groot.

The official synopsis for the Guardians of the Galaxy series reads:

Marvel's Guardians of the Galaxy follows the newly-formed team who finds a strange artifact keyed only to the DNA of Peter Quill. Upon opening it, Quill unleashes a treasure map leading to a powerful weapon known as the Cosmic Seed which is capable of giving birth to the next universe. It's up to the Guardians to find, protect and ultimately destroy the Cosmic Seed in order to keep it out of the hands of those who would abuse its power, from galactic big boss Thanos, to the conniving brothers the Collector and the Grandmaster, to a resurrected Ronan, to the ultimate trickster, Loki, in order to save the universe.

Marvel's Guardians of the Galaxy animated series premieres on September 26 on Disney XD. There will also be a sneak peek at the first episode on September 5.